Charles hvass



(No Model.) SShets-Sheet 1;

G. HVASS. STREET SWEEPER.

No. 548,200. Patented 0015; 22, 1895.

INVENTOR a WITNESSES: w?- MJ ATTOH N EY a Shefis-Sheet 2.

(No Model.)

GSHVASS.

STREET SWEEPER- No. 548,200. Patented 001;. 22, 1895.-

INVENTQR WITNESSES ATTORNEY ANDREW B GRAHAM. PHOTOLIYIQQWASNINGTON. RC

3 Sheets-Sheet 3.

(No Model.) v

' 0. EV S.

\ STREETS BR.

Patented Oct. 22, 1895.

WITNESSES:

e/MJM M.PNOTO-LITHD4WASNINGTONJIC.

PATENT ()FFICE.

CHARLES HVASS, OF NEW YORK, N. Y. A

STREET-SZWEEPER.

SPECIFICATION forming part of Letters Patent No. 548,200, dated October 22, 1895.

Application filed December 20,1893- Serial No. 494,221. (No model.)

To all whom, it may concern:

Be it known that I, CHARLES HVASS, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Sweeping- Machines, of which the following is a specification.

My invention has relation to a streetsweeper; and it consists in the construction and novel arrangement of parts, as hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the appended claims.

The object of my invention is to provide a sweeping-machine of simple and inexpensive construction and to so construct the machine that it may be readily operated or worked by hand or otherwise, both from the front and rear thereof; further, to provide a simple and effectual means for adjusting the brush in a raised or lowered position as well as means for supporting the handle, and certain other improvements, as will appear from the drawings.

Figure 1 represents a side elevation of a sweeper embodying my invention. Fig. 2 represents a plan View thereof. Fig. 3 is a detail front view of the handle-supporting frame. Fig. 4 is a detail side view of same. Fig. 5 is a detail face view of the washers S and pin S. Fig. 6 is an edge view of same, pin S removed. Fig. 7 is a detail perspective View of hook P and pin P; Fig. 8, an enlarged side view of the lever-adjusting device; Fig. 9, a detail end view of the same; Fig. 10, a detail view of one of the cams 0; Fig. 11, a sectional view showing its position in the hub; Fig. 12, a detail view showing construction of the brush-shaft D; Fig. 13, a detail in side view of one of the bars F and concomitants; Fig. 14, an end view of the same. Fig.

plan view of the hub of one of the main driving-wheels, showing the relation of the several r parts of the clutch and washer.

' Referring to the accompanying drawings, wherein like letters of reference indicate corresponding parts in all the figures, the letter A designates the main frame of the sweeper, consisting of suitable side and cross bars, which frame is mounted directly upon the rear axle B. At the front end of the frame A is secured in any desired manner bifurcated post A, in which is journaled a steering-wheel O. Loosely mounted on the rear axle are driving-wheels C.

The letter D indicates a brush which is oblique to the longitudinal plane of the sweeper and is dependent from the main frame in suitable sectional and adjustable end bars F, pivoted to hangers G. The bars F are provided with suitable castings F, having bearings F for the ends of the brush-shaft D.

The brush-shaft D is adjustable in its bearingsby the following means: At the ends of the bars F, which depend from the hangers G, are castings F, having bearings F for the shaft. The casting has a groove or cutout portion F on its inner face, the upper and lower walls of which are provided with notches. A second groove f on the outer side of the casting forms a seat for the reception of the bar F, a thin wall f remaining between the grooves F and f and has a slot f, through which a bolt 1 is passed. It de-. sired, one or more bolts may be employed, as shown in Fig. 2. The bolts f are passed through slots f in the bars F and through slots f into a nut F which is seated in the groove f and prevented from turning therein by having two of its corners seated in notches in the upper and lower walls.

It will be readily understood that when it is desired to adjust the brush the bolts f are released, the bars F adjusted to the desi'red point, the nuts F fitted into corresponding notches in the grooves F and the bolts f screwed into the nut, thus binding the parts securely.

bars F is to permit a slight adjustment of the The object of the slots f in the 5 brush by simply releasing the bolt and not taking the nut out of engagement with the notches.

F designates a cross-bar between the bars F, to which is loosely attached the lower end of a vertical rod 1, its opposite end provided with an eye engaging a hook on the liftinglever I, fulcrumed to a suitable standard I on the main frame. The lever I is provided, intermediate of its length, with an opening through which passes a clamping-bolt J, and is designed to hold said lever in its adjustable position. I

To readily permit ofthe brush D being raised or lowered and held in such adjusted position, I employ the following means: Rigidly secured to the main frame, to the front end thereof, is a suitable standard J provided with a longitudinal slot J, said standard being further provided upon one of its faces and both sides of the slot J with V- shaped jogs or teeth J against which is ad apted to fit and be held the toothed head of a bolt J, having asuitable jam or thumb nut J K designates a short shaft journaled in suitable hangers G G, secured to the main frame A. Keyed on the shaft K is a sprocketwheel K on which and the sprocket-wheel K on the extended end of the brush-shaft D passes an endless sprocket-chain K Keyed on the shaft K is also a beveled gear-wheel K which meshes with a like wheel K on the axle B.

Should the sprocket-wheel become out of order, the brush can be reversed and the sprocket-wheel D on the opposite side of the shaftmay be used. Sprocket-wheels on each side of the brush have been found desirable for this purpose.

To avoid all danger of the sprocket-chain contacting with the brush and to prevent a breaking of these parts, I employ a guard or shield N, fastened near the lower end of one of the bars F, as plainly shown in plan view, Figs. 2 and 15.

Letter 0 designates cams, one secured near each end of the axle B, and each is provided with a series of inclined grooves or recesses. On each hub is secured a ring 0', inclosing the cam 0. Between the cams and ring are arranged a series of rollers 0 It will be seen that by this construction of the cams on the rear axle the driving-wheels C are free to turn upon the axle B when the sweeping-machine is drawn rearward, but are tight on the axle when the machine is drawn forward.

On the extended ends of the axleB are washers S, provided with pins S S designates a linchpin passing through the axle B.

Letter Q designates a suitable handle pivoted to a standard Q, on the main frame and adapted to be used from the rear of the machine, as well as from the front, by being turned on its pivot. Q Q are standards, one

secured on the rear of the main frame and the other near the front of the main frame in line with the handle Q, said standards terminating at their upper ends in suitable forks P, adapted to hold in an elevated position the handle Q. The forked portions P are provided with aligned perforations, through which pass pins P, and are designed to hold the handlebar Q in position. To prevent the accidental displacement of the pins P, I provide said pins with a. head P made eccentric to the body of the pin, and when in position-are designed to abut against suitable keepers or hooks P on the standards Q Q The brush-shaft is made in three parts, consisting of a wooden center D and a screwthreaded portion D at each end thereof. These screw-threaded portions are provided with extended rounded ends adapted to enter the openings in the lower ends of the parts F and serve as journals for the brush. Each end of the brush is provided with a sprocket wheel D for imparting motion to the brush.

The post A is swiveled in a stem A and is provided with a clamping-nut A by means of which the angular position of the front wheel may be changed to permit of the machine bein g run in a straight or circular direction.

I do not desire to confine myself to the precise construction herein shown and described, as many minor changes may be made without departing from the spirit of my invention.

The construction and operation of my sweeper, taken in connection with the above description and accompanying drawings, will be readily understood by those skilled in the art.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a sweeper the combination with a brush supporting frame, of aliftinglever connected thereto and means for securing the lever in an adjusted position consisting of a slotted standard secured to the main frame provided with a slot having rack teeth on each side of said slot a screw bolt carried by the lever and passing therethrough and in the slot of the standard, a nut applied to the bolt to clamp the head of the bolt against the rack teeth of the standard, substantially as specified.

2. In asweeper a support for the handle bar consisting of a standard terminating in a fork, a stop pin passing through the fork with an eccentric gravitating head at one end and a hook at one side of the fork to engage the pin head, substantially as specified.

3. In a hand sweeper, the combination with the main frame and brush frame, a lifting lever connected to the brush frame, a slotted standard carried by the main frameprovided with rack teeth on its outer surface a clamping boltpassing through the lever and standard provided with a serrated head, de-

signed to clamp and hold the lever in its adsaid openings provided with eccentric heads,

justed position, substantially as specified. and a stop on the standards for holding said [O 4. In a hand sweeper, the combination with pins, substantially as specified.

the mainframe, provided at'each end with suit- 5 able supports for the handle bar, fulcrumed CHARLES HVASS.

to the main frame, said supports consisting of Witnesses: forked standards provided with aligned open- FRANCIS C. BOWEN,

ings therein, suitable pins passing through PERCY L. KLOOK. 

